Many thanks, that makes a lot of sense. I filtered the solution right after your post, and will use deionized water in the future. Any idea why this never happend with Kodak's or Ilford's WashAid?
I could be wrong, but I have read somewhere that Kodak included in some of their formulas chemicals to deal with the impurities in domestic water. Somebody else will have to confirm this (or refute it).
David Taking pictures is easy. Making photographs is hard.